Stunning, marsh front and river view four bedroom, three-and-half bath home with detached one-bedroom apartment, inground pool and sauna located in on private cul-de-sac street, in stunning I'On subdivision in inner Mt Pleasant. This custom-built home takes advantage of it's placement on a marshfront peninsula, with stunning views from each of the three floors, along with a large roof top deck. Access all the floors from the commercial grade elevator.This solid home is built aerated concrete block constructed walls and floors and with German custom windows and doors, in a European-style construction inclusive of first floor plaster interior wall finishes. Enter into a gracious foyer with separate coat closet and powder room. The coat closet has custom built-ins.Note the wall of windows and doors looking out onto the courtyard patio and pool area. The salt water pool is graciously sized with integrated hot tub, extra-deep and with swim jets. At the far end of the pool is the pool house with a tiled, full bathroom and Swiss-style sauna. At the back of the home is the open great room which leads to a fully screened back porch, the first of three porches looking out onto the marsh. These expansive porches have space for large seating and dining areas. The living and dining areas are interchangeable, for flexibility in layout. At the far end of the great room is a wood burning fireplace. The kitchen has top end appliances including sub-zero refrigerator, Wolfe stove and Thermador dishwasher. There is a separate pantry with built-in cabinetry and a sizeable island with quartz and wood accent counters. Heading to the second story, there are three bedrooms. Two bedrooms share a jack-n-jill style bath and each have access to the second story covered porch. At the front of the house is a third bedroom with ensuite bathroom. Also located on the second floor are a hall storage closet and hall laundry with custom cabinetry, wash sink and hanging space. The washer and dryer are side-by-side with plenty of counter area for folding and don't forget to look up, as there is a laundry shoot from the primary closet for added convenience. The third floor features a primary suite extending the width of the home. There are multiple oversized windows and doors, creating an exceptional view whether in bed, showering or soaking in the free-standing, modern tub. At the front of the home is an additional flex room a private retreat perfect for den, exercise, office or any other preferred use. Heading up the stairs to the fourth floor, access the rooftop deck. This home towers over other homes and trees around it, create an expansive 360-degree viewing opportunity. Pre-plumbed for a future outdoor kitchen, this space opens entertaining options. Take the elevator down from the fourth to the first floor, offer guests easy access to the top, the choice is yours and the convenience makes this an easy entertainment opportunity. The apartment features an open great room with vaulted ceilings and kitchenette. Graciously-sized space for living and dining tables. The bedroom is separate and there is a full bath. Outside the front door is a Juliette-style balcony facing streetward but with privacy due to mature landscaping. The garage consists of two separate car bays and a smaller third bay perfect for golf cart, along with a trellis covered area. Within the garage is a washer/dryer hookup for potential apartment use. I'on has a number of community features, including a walking trail that is accessible from Duany. A dog lover? Come visit the dog park less than a block away. Enjoy the rookery, restaurants, shops, lakeside events, water access from the community dock, and so much more.
Rare opportunity to own a very private marshfront estate on the most desirable street in I'On. This custom-built property maximizes the spectacular views of Hobcaw creek and its marshes. Designed with aerated concrete blocks, concrete floors and ceilings, this home is truly a solid European-style construction, built to last. High-end German windows and doors with laminated glass provide excellent hurricane protection. The house features three gracious porches overlooking the marsh, a rooftop, a private courtyard with a sizable pool, a front and backyard with plenty of space to entertain or play. Plus, a commercial-style elevator services all stories, including the rooftop.The interior welcomes you into the light-filled foyer with a mudroom and a powder room to the right. Down the hallway, the beautiful kitchen commences with Ann Sacks tiles, a large island, Sub-Zero and Wolf appliances, and a walk-in pantry. Open to the kitchen is the living and dining room. The whole first floor is lined by oversized windows and doors. Located off the living room, the marshfront porch has motorized mosquito screens offering protection when needed and can be opened to expand the views. Just off the main living area, the courtyard showcases an extra-deep swimming pool with an integrated spa as well as a pool house with a full bathroom and a Swedish Sauna. On the second floor, there are two generously sized bedrooms with a Jack-and-Jill bathroom and spectacular Lowcountry marsh and wetland views. Completing this level is a well-designed laundry room and an additional bedroom with an en suite bathroom and walk-in closet. Taking advantage of the stunning views, the extensive master suite rests on the third floor boasting a modern-style bathroom with Onyx stone, tons of daylight and privacy. Also found on this level is an office that could easily be used as an extra bedroom. On the fourth floor, you have a breathtaking rooftop with tantalizing marsh and water views, along with peeks of the Ravenel Bridge. The detached carriage house consists of vaulted ceilings, a plethora of windows and light, a kitchenette, a separate bedroom and bathroom, plus its own private seating area outside. There is a two- and one-half-car garage, a large carport and extra parking space in the driveway. Also, Duany Road has loads of off-street parking, which is rare to find in I'On.
Year
Property tax
Land + Additions
Assessment*
2025
$18,557 (+43.6%)
$1,047,500 + $3,052,500
$4,100,000
2022
$12,921 (+80.9%)
2021
$7,143 (−3.1%)
2020
$7,371 (+14.4%)
$787,100 + $1,069,100
$1,856,200
2018
$6,445 (+1.5%)
2017
$6,347 (+5.4%)
2016
$6,020 (+16.6%)
2013
$5,164
Tax history for 3 Duany Rd
Year
Property tax
Land + Additions
Assessment*
2025
$18,557 (+43.6%)
$1,047,500 + $3,052,500
$4,100,000
2022
$12,921 (+80.9%)
2021
$7,143 (−3.1%)
2020
$7,371 (+14.4%)
$787,100 + $1,069,100
$1,856,200
2018
$6,445 (+1.5%)
2017
$6,347 (+5.4%)
2016
$6,020 (+16.6%)
2013
$5,164
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Beds
6
Baths
5.5
Stories
2
Lot width
—
Lot depth
—
Lot size
0.29 Acres
Year renovated
—
Sq. Ft.
5,251
Year built
2010
Style
Single Family Residential
County
Charleston County
APN
5350600839
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Aug 14, 2026.
PD
Planned Development District
The purpose of the PD, Planned Development, District is to: Achieve the objectives of the Comprehensive Plan by allowing flexibility in development that will result in improved design, character, and quality of new mixed use developments that also preserve natural and scenic features of open spaces as a design component; Encourage flexibility in the development of land in order to promote its most appropriate use; Improve the design, character, and quality of new development; Facilitate the provision of streets and utilities and Preserve the natural and scenic features of open areas.; The PD District provisions must exhibit innovative site planning for a mixture of residential and non-residential uses as reflected in the PD District map, which becomes the zoning district map for the property.
Permitted uses
Include but are not limited to:
No uses permitted by right
Property details
Interior
Bathroom Information
Bathrooms Total Decimal: 5.5
Bathrooms Total Integer: 6
Bedroom Information
Bedrooms Total: 5
Exterior
Property Type
Residential
Single Family Detached
Property Information
Ownership: Fee Simple
Property Type: Residential
Building Information
Entry Location: Ground Level
Subdivision Information
Subdivision Name: Ion
Financial
Tax Information
Tax Annual Amount: 7143
Tax District: 21 - Town of Mt. Pleasant
Tax Legal Description: LOT 9-9
Tax Map Number: 5350600839
Utilities
Utility Information
Public Sewer
Location
School Information
Elementary School: James B Edwards
Middle Or Junior School: Moultrie
High School: Lucy Beckham
Neighborhood Information
Subdivision Name: Ion
MLS Area Major: 42 - Mt Pleasant S of IOP Connector
Public facts
Beds: 6
Baths: 5.5
Sq. Ft.: 5,251
Stories: 2.0
Lot Size: 0.29 acres
Style: Single Family Residential
Year Built: 2010
Year Renovated: —
County: Charleston County
APN: 5350600839
Home facts updated by county records on Aug 14, 2026